Book I. The Technique. The Assumptions ; The Geometry - Book II. Monopoly Equilibrium. Monopoly Equilibrium ; Changes in Demand ; Changes in Cost - Book III. Competitive Equilibrium. The Supply Curve ; Competitive Equilibrium ; A Digression on Rent ; The Supply Curve Under Perfect Competition - Book IV. The Comparison of Monopoly and Competitive Output. A Digression on the Four Cost Curves ; Comparisons of Monopoly and Competitive Output ; Commentary on the Comparisons ; Control of Monopoly Price ; Objections to the Comparisons - Book V. Price Discrimination. Price Discrimination ; The Moral of Price Discrimination - Book VI. Monopsony. A Digression on the Buyer ; Monopsony ; Relationship of Monopsony and Monopoly to Perfect Competition - Book VII. The Demand for a Factor of Production. A Digression on Marginal Net Productivity ; The Demand for Labour of the Individual Employer ; The Demand Curve for Labour of an Industry - Book VIII. The Comparison of Monopoly and Competitive Demand for Labour. Comparisons of Monopoly and Competitive Demand for Labour ; Correction of the Comparisons - Book IX. Exploitation. Monopolistic Exploitation of Labour ; Monopsonistic Exploitation of Labour - Book X. A World of Monopolies.